1. Nov 1, 2011 #1

   csmcmillion

   

   Watched a physics lecture yesterday in which the teacher stated that a G field has energy, but an E filed (due to the Coulomb force does not). This does not compute. Both fields have potential energy, yes?

    

   csmcmillion, Nov 1, 2011
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • Terahertz technology creates new insight into how semiconductor lasers work
   • • The behavior of water—scientists find new properties of H2O
   • • Protons may have an outsize influence on the properties of neutron stars and other neutron-rich objects
3. Nov 1, 2011 #2

   Pengwuino

   

   Gold Member

   Yes, that doesn't make sense. Are you sure that's what they meant?

    

   Pengwuino, Nov 1, 2011
4. Nov 1, 2011 #3

   csmcmillion

   

   Maybe not. The exact statement was "In an ordinary sense, electric charge is not energy, but gravitational charge is energy". So maybe I am misunderstanding the statement.

    

   csmcmillion, Nov 1, 2011
5. Nov 1, 2011 #4

   nnnm4

   

   Okay that clears it up. They are talking about the equivalence between mass and energy that comes out of relativity. There is no analogous equivalence for charge.

    

   nnnm4, Nov 1, 2011

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in